/**
 * @author qiao / https://github.com/qiao
 * @author mrdoob / http://mrdoob.com
 * @author alteredq / http://alteredqualia.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author erich666 / http://erichaines.com
 */

// This set of controls performs orbiting, dollying (zooming), and panning.
// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
//
//    Orbit - left mouse / touch: one-finger move
//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
//    Pan - right mouse, or arrow keys / touch: two-finger move
export default class OrbitControls {
    constructor(THREE) {
        THREE.OrbitControls = function (scene, object, domElement, editor) {
            this.scene = scene;

            this.object = object;

            this.domElement = (domElement !== undefined) ? domElement : document;

            this.editor = editor;
            // Set to false to disable this control
            this.enabled = true;

            // "target" sets the location of focus, where the object orbits around
            this.target = new THREE.Vector3();

            // How far you can dolly in and out ( PerspectiveCamera only )
            this.minDistance = 0;
            this.maxDistance = Infinity;

            // How far you can zoom in and out ( OrthographicCamera only )
            this.minZoom = 0;
            this.maxZoom = Infinity;

            // How far you can orbit vertically, upper and lower limits.
            // Range is 0 to Math.PI radians.
            this.minPolarAngle = 0; // radians
            this.maxPolarAngle = Math.PI; // radians

            // How far you can orbit horizontally, upper and lower limits.
            // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].
            this.minAzimuthAngle = -Infinity; // radians
            this.maxAzimuthAngle = Infinity; // radians

            // Set to true to enable damping (inertia)
            // If damping is enabled, you must call controls.update() in your animation loop
            this.enableDamping = false;
            this.dampingFactor = 0.05;

            // This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
            // Set to false to disable zooming
            this.enableZoom = true;
            this.zoomSpeed = 3.0;

            // Set to false to disable rotating
            this.enableRotate = true;
            this.rotateSpeed = 1.0;

            // Set to false to disable panning
            this.enablePan = false;
            this.panSpeed = 1.0;
            this.screenSpacePanning = false; // if true, pan in screen-space
            this.keyPanSpeed = 7.0;	// pixels moved per arrow key push

            // Set to true to automatically rotate around the target
            // If auto-rotate is enabled, you must call controls.update() in your animation loop
            this.autoRotate = false;
            this.autoRotateSpeed = 4.0; // 30 seconds per round when fps is 60

            // Set to false to disable use of the keys
            this.enableKeys = false;

            // The four arrow keys
            this.keys = {LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40};

            // Mouse buttons
            this.mouseButtons = {ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT};

            // for reset
            this.target0 = this.target.clone();
            this.position0 = this.object.position.clone();
            this.zoom0 = this.object.zoom;

            //
            // public methods
            //

            this.getPolarAngle = function () {

                return spherical.phi;

            };

            this.getAzimuthalAngle = function () {

                return spherical.theta;

            };

            this.setAzimuthalAngle = function (v) {
                spherical.forcedTheta = v;
            };

            this.saveState = function () {

                scope.target0.copy(scope.target);
                scope.position0.copy(scope.object.position);
                scope.zoom0 = scope.object.zoom;

            };

            this.reset = function () {

                scope.target.copy(scope.target0);
                scope.object.position.copy(scope.position0);
                scope.object.zoom = scope.zoom0;

                scope.object.updateProjectionMatrix();
                scope.dispatchEvent(changeEvent);

                scope.update();

                state = STATE.NONE;

            };

            // this method is exposed, but perhaps it would be better if we can make it private...
            this.update = function () {
                var offset = new THREE.Vector3();

                // so camera.up is the orbit axis
                var quat = new THREE.Quaternion().setFromUnitVectors(object.up, new THREE.Vector3(0, 1, 0));
                var quatInverse = quat.clone().inverse();

                var lastPosition = new THREE.Vector3();
                var lastQuaternion = new THREE.Quaternion();

                return function update() {

                    var position = scope.object.position;

                    offset.copy(position).sub(scope.target);

                    // rotate offset to "y-axis-is-up" space
                    offset.applyQuaternion(quat);

                    // angle from z-axis around y-axis
                    spherical.setFromVector3(offset);

                    if (scope.autoRotate && state === STATE.NONE) {

                        rotateLeft(getAutoRotationAngle());

                    }

                    spherical.theta += sphericalDelta.theta;
                    spherical.phi += sphericalDelta.phi;

                    // restrict theta to be between desired limits
                    //spherical.theta = (spherical.forcedTheta != undefined && spherical.forcedTheta) || Math.max(scope.minAzimuthAngle, Math.min(scope.maxAzimuthAngle, spherical.theta));
                    spherical.theta = Math.max(scope.minAzimuthAngle, Math.min(scope.maxAzimuthAngle, spherical.theta));
                    spherical.forcedTheta = undefined;


                    // restrict phi to be between desired limits
                    spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi));

                    spherical.makeSafe();

                    spherical.radius *= scale;
                    // restrict radius to be between desired limits
                    spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius));

                    // move target to panned location
                    scope.target.add(panOffset);

                    offset.setFromSpherical(spherical);

                    // rotate offset back to "camera-up-vector-is-up" space
                    offset.applyQuaternion(quatInverse);

                    position.copy(scope.target).add(offset);

                    scope.object.lookAt(scope.target);

                    if (scope.enableDamping === true) {

                        sphericalDelta.theta *= (1 - scope.dampingFactor);
                        sphericalDelta.phi *= (1 - scope.dampingFactor);

                        panOffset.multiplyScalar(1 - scope.dampingFactor);

                    } else {

                        sphericalDelta.set(0, 0, 0);

                        panOffset.set(0, 0, 0);

                    }

                    scale = 1;

                    // update condition is:
                    // min(camera displacement, camera rotation in radians)^2 > EPS
                    // using small-angle approximation cos(x/2) = 1 - x^2 / 8

                    if (zoomChanged ||
                        lastPosition.distanceToSquared(scope.object.position) > EPS ||
                        8 * (1 - lastQuaternion.dot(scope.object.quaternion)) > EPS) {

                        scope.dispatchEvent(changeEvent);

                        lastPosition.copy(scope.object.position);
                        lastQuaternion.copy(scope.object.quaternion);
                        zoomChanged = false;

                        return true;

                    }

                    return false;

                };

            }();

            this.deactivate = function () {

                //scope.domElement.removeEventListener('contextmenu', onContextMenu, false);
                scope.domElement.removeEventListener('mousedown', onMouseDown, false);
                scope.domElement.removeEventListener('wheel', onMouseWheel, false);

                scope.domElement.removeEventListener('touchstart', onTouchStart, false);
                scope.domElement.removeEventListener('touchend', onTouchEnd, false);
                scope.domElement.removeEventListener('touchmove', onTouchMove, false);

                document.removeEventListener('mousemove', onMouseMove, false);
                document.removeEventListener('mouseup', onMouseUp, false);

                window.removeEventListener('keydown', onKeyDown, false);

                //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?

            };

            this.activate = function () {
                //scope.domElement.addEventListener('contextmenu', onContextMenu, false);
                scope.domElement.addEventListener('mousedown', onMouseDown, false);
                scope.domElement.addEventListener('wheel', onMouseWheel, false);

                scope.domElement.addEventListener('touchstart', onTouchStart, false);
                scope.domElement.addEventListener('touchend', onTouchEnd, false);
                scope.domElement.addEventListener('touchmove', onTouchMove, false);

                window.addEventListener('keydown', onKeyDown, false);
            };
            //
            // internals
            //

            var scope = this;

            var changeEvent = {type: 'change'};
            var startEvent = {type: 'start'};
            var endEvent = {type: 'end'};

            var STATE = {NONE: -1, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_DOLLY_PAN: 4};

            var state = STATE.NONE;

            var EPS = 0.000001;

            // current position in spherical coordinates
            var spherical = new THREE.Spherical();
            var sphericalDelta = new THREE.Spherical();

            var scale = 1;
            var panOffset = new THREE.Vector3();
            var zoomChanged = false;

            var rotateStart = new THREE.Vector2();
            var rotateEnd = new THREE.Vector2();
            var rotateDelta = new THREE.Vector2();

            var panStart = new THREE.Vector2();
            var panEnd = new THREE.Vector2();
            var panDelta = new THREE.Vector2();

            var dollyStart = new THREE.Vector2();
            var dollyEnd = new THREE.Vector2();
            var dollyDelta = new THREE.Vector2();

            function getAutoRotationAngle() {

                return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;

            }

            function getZoomScale() {

                return Math.pow(0.95, scope.zoomSpeed);

            }

            function rotateLeft(angle) {

                sphericalDelta.theta -= angle;

            }

            function rotateUp(angle) {

                sphericalDelta.phi -= angle;

            }

            var panLeft = function () {

                var v = new THREE.Vector3();

                return function panLeft(distance, objectMatrix) {

                    v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix
                    v.multiplyScalar(-distance);

                    panOffset.add(v);

                };

            }();

            var panUp = function () {

                var v = new THREE.Vector3();

                return function panUp(distance, objectMatrix) {

                    if (scope.screenSpacePanning === true) {

                        v.setFromMatrixColumn(objectMatrix, 1);

                    } else {

                        v.setFromMatrixColumn(objectMatrix, 0);
                        v.crossVectors(scope.object.up, v);

                    }

                    v.multiplyScalar(distance);

                    panOffset.add(v);

                };

            }();

            // deltaX and deltaY are in pixels; right and down are positive
            var pan = function () {

                var offset = new THREE.Vector3();

                return function pan(deltaX, deltaY) {

                    var element = scope.domElement === document ? scope.domElement.body : scope.domElement;

                    if (scope.object.isPerspectiveCamera) {

                        // perspective
                        var position = scope.object.position;
                        offset.copy(position).sub(scope.target);
                        var targetDistance = offset.length();

                        // half of the fov is center to top of screen
                        targetDistance *= Math.tan((scope.object.fov / 2) * Math.PI / 180.0);

                        // we use only clientHeight here so aspect ratio does not distort speed
                        panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix);
                        panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix);

                    } else if (scope.object.isOrthographicCamera) {

                        // orthographic
                        panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix);
                        panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / element.clientHeight, scope.object.matrix);

                    } else {

                        // camera neither orthographic nor perspective
                        console.warn('WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.');
                        scope.enablePan = false;

                    }

                };

            }();

            function dollyIn(dollyScale) {

                if (scope.object.isPerspectiveCamera) {

                    scale /= dollyScale;

                } else if (scope.object.isOrthographicCamera) {

                    scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom * dollyScale));
                    scope.object.updateProjectionMatrix();
                    zoomChanged = true;

                } else {

                    console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
                    scope.enableZoom = false;

                }

            }

            this.din = dollyIn;

            function dollyOut(dollyScale) {

                if (scope.object.isPerspectiveCamera) {

                    scale *= dollyScale;

                } else if (scope.object.isOrthographicCamera) {

                    scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom / dollyScale));
                    scope.object.updateProjectionMatrix();
                    zoomChanged = true;

                } else {

                    console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
                    scope.enableZoom = false;

                }

            }

            //
            // event callbacks - update the object state
            //

            function handleMouseDownRotate(event) {

                rotateStart.set(event.clientX, event.clientY);

            }

            function handleMouseDownDolly(event) {


                dollyStart.set(event.clientX, event.clientY);

            }

            function handleMouseDownPan(event) {

                //console.log( 'handleMouseDownPan' );

                panStart.set(event.clientX, event.clientY);

            }

            function handleMouseMoveRotate(event) {

                //console.log( 'handleMouseMoveRotate' );

                rotateEnd.set(event.clientX, event.clientY);

                rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);

                var element = scope.domElement === document ? scope.domElement.body : scope.domElement;

                // rotating across whole screen goes 360 degrees around
                rotateLeft(2 * Math.PI * rotateDelta.x / element.clientWidth);

                // rotating up and down along whole screen attempts to go 360, but limited to 180
                rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);

                rotateStart.copy(rotateEnd);

                scope.update();

            }

            function handleMouseMoveDolly(event) {

                //console.log( 'handleMouseMoveDolly' );

                dollyEnd.set(event.clientX, event.clientY);

                dollyDelta.subVectors(dollyEnd, dollyStart);

                if (dollyDelta.y > 0) {

                    dollyIn(getZoomScale());

                } else if (dollyDelta.y < 0) {

                    dollyOut(getZoomScale());

                }

                dollyStart.copy(dollyEnd);

                scope.update();

            }

            function handleMouseMovePan(event) {

                //console.log( 'handleMouseMovePan' );

                panEnd.set(event.clientX, event.clientY);

                panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);

                pan(panDelta.x, panDelta.y);

                panStart.copy(panEnd);

                scope.update();

            }

            function handleMouseUp(event) {

                // console.log( 'handleMouseUp' );

            }

            function handleMouseWheel(event) {

                // console.log( 'handleMouseWheel' );

                if (event.deltaY < 0) {

                    dollyOut(getZoomScale());

                } else if (event.deltaY > 0) {

                    dollyIn(getZoomScale());

                }

                scope.update();

            }

            function handleKeyDown(event) {

                //console.log( 'handleKeyDown' );

                switch (event.keyCode) {

                    case scope.keys.UP:
                        pan(0, scope.keyPanSpeed);
                        scope.update();
                        break;

                    case scope.keys.BOTTOM:
                        pan(0, -scope.keyPanSpeed);
                        scope.update();
                        break;

                    case scope.keys.LEFT:
                        pan(scope.keyPanSpeed, 0);
                        scope.update();
                        break;

                    case scope.keys.RIGHT:
                        pan(-scope.keyPanSpeed, 0);
                        scope.update();
                        break;

                }

            }

            function handleTouchStartRotate(event) {

                //console.log( 'handleTouchStartRotate' );

                rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);

            }

            function handleTouchStartDollyPan(event) {

                //console.log( 'handleTouchStartDollyPan' );

                if (scope.enableZoom) {

                    var dx = event.touches[0].pageX - event.touches[1].pageX;
                    var dy = event.touches[0].pageY - event.touches[1].pageY;

                    var distance = Math.sqrt(dx * dx + dy * dy);

                    dollyStart.set(0, distance);

                }

                if (scope.enablePan) {

                    var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
                    var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);

                    panStart.set(x, y);

                }

            }

            function handleTouchMoveRotate(event) {

                //console.log( 'handleTouchMoveRotate' );

                rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);

                rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);

                var element = scope.domElement === document ? scope.domElement.body : scope.domElement;

                // rotating across whole screen goes 360 degrees around
                rotateLeft(2 * Math.PI * rotateDelta.x / element.clientWidth);

                // rotating up and down along whole screen attempts to go 360, but limited to 180
                rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);

                rotateStart.copy(rotateEnd);

                scope.update();

            }

            function handleTouchMoveDollyPan(event) {

                //console.log( 'handleTouchMoveDollyPan' );

                if (scope.enableZoom) {

                    var dx = event.touches[0].pageX - event.touches[1].pageX;
                    var dy = event.touches[0].pageY - event.touches[1].pageY;

                    var distance = Math.sqrt(dx * dx + dy * dy);

                    dollyEnd.set(0, distance);

                    dollyDelta.set(0, Math.pow(dollyEnd.y / dollyStart.y, scope.zoomSpeed));

                    dollyIn(dollyDelta.y);

                    dollyStart.copy(dollyEnd);

                }

                if (scope.enablePan) {

                    var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
                    var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);

                    panEnd.set(x, y);

                    panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);

                    pan(panDelta.x, panDelta.y);

                    panStart.copy(panEnd);

                }

                scope.update();

            }

            function handleTouchEnd(event) {

                //console.log( 'handleTouchEnd' );

            }

            //
            // event handlers - FSM: listen for events and reset state
            //

            function onMouseDown(event) {

                if (scope.enabled === false) return;

                event.preventDefault();

                switch (event.button) {

                    case scope.mouseButtons.ORBIT:

                        if (scope.enableRotate === false) return;

                        handleMouseDownRotate(event);

                        state = STATE.ROTATE;

                        break;

                    case scope.mouseButtons.ZOOM:

                        if (scope.enableZoom === false) return;

                        handleMouseDownDolly(event);

                        state = STATE.DOLLY;

                        break;

                    case scope.mouseButtons.PAN:

                        if (scope.enablePan === false) return;

                        handleMouseDownPan(event);

                        state = STATE.PAN;

                        break;

                }

                if (state !== STATE.NONE) {

                    document.addEventListener('mousemove', onMouseMove, false);
                    document.addEventListener('mouseup', onMouseUp, false);

                    scope.dispatchEvent(startEvent);

                }

            }

            function onMouseMove(event) {

                if (scope.enabled === false) return;

                event.preventDefault();

                switch (state) {

                    case STATE.ROTATE:

                        if (scope.enableRotate === false) return;

                        handleMouseMoveRotate(event);

                        break;

                    case STATE.DOLLY:

                        if (scope.enableZoom === false) return;

                        handleMouseMoveDolly(event);

                        break;

                    case STATE.PAN:

                        if (scope.enablePan === false) return;

                        handleMouseMovePan(event);

                        break;

                }

            }

            function onMouseUp(event) {

                if (scope.enabled === false) return;

                handleMouseUp(event);

                document.removeEventListener('mousemove', onMouseMove, false);
                document.removeEventListener('mouseup', onMouseUp, false);

                scope.dispatchEvent(endEvent);

                state = STATE.NONE;

            }

            function onMouseWheel(event) {

                if (scope.enabled === false || scope.enableZoom === false || (state !== STATE.NONE && state !== STATE.ROTATE)) return;

                event.preventDefault();
                event.stopPropagation();

                scope.dispatchEvent(startEvent);

                handleMouseWheel(event);

                scope.dispatchEvent(endEvent);

            }

            function onKeyDown(event) {

                if (scope.enabled === false || scope.enableKeys === false || scope.enablePan === false) return;

                handleKeyDown(event);

            }

            function onTouchStart(event) {

                if (scope.enabled === false) return;

                event.preventDefault();

                switch (event.touches.length) {

                    case 1:	// one-fingered touch: rotate

                        if (scope.enableRotate === false) return;

                        handleTouchStartRotate(event);

                        state = STATE.TOUCH_ROTATE;

                        break;

                    case 2:	// two-fingered touch: dolly-pan

                        if (scope.enableZoom === false && scope.enablePan === false) return;

                        handleTouchStartDollyPan(event);

                        state = STATE.TOUCH_DOLLY_PAN;

                        break;

                    default:

                        state = STATE.NONE;

                }

                if (state !== STATE.NONE) {

                    scope.dispatchEvent(startEvent);

                }

            }

            function onTouchMove(event) {

                if (scope.enabled === false) return;

                event.preventDefault();
                event.stopPropagation();

                switch (event.touches.length) {

                    case 1: // one-fingered touch: rotate

                        if (scope.enableRotate === false) return;
                        if (state !== STATE.TOUCH_ROTATE) return; // is this needed?

                        handleTouchMoveRotate(event);

                        break;

                    case 2: // two-fingered touch: dolly-pan

                        if (scope.enableZoom === false && scope.enablePan === false) return;
                        if (state !== STATE.TOUCH_DOLLY_PAN) return; // is this needed?

                        handleTouchMoveDollyPan(event);

                        break;

                    default:

                        state = STATE.NONE;

                }

            }

            function onTouchEnd(event) {

                if (scope.enabled === false) return;

                handleTouchEnd(event);

                scope.dispatchEvent(endEvent);

                state = STATE.NONE;

            }

            function onContextMenu(event) {

                if (scope.enabled === false) return;

                event.preventDefault();

            }

            //

            // scope.domElement.addEventListener('contextmenu', onContextMenu, false);
            //
            // scope.domElement.addEventListener('mousedown', onMouseDown, false);
            // scope.domElement.addEventListener('wheel', onMouseWheel, false);
            //
            // scope.domElement.addEventListener('touchstart', onTouchStart, false);
            // scope.domElement.addEventListener('touchend', onTouchEnd, false);
            // scope.domElement.addEventListener('touchmove', onTouchMove, false);
            //
            // window.addEventListener('keydown', onKeyDown, false);

            // force an update at start

            this.update();

        };

        THREE.OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype);
        THREE.OrbitControls.prototype.constructor = THREE.OrbitControls;

        Object.defineProperties(THREE.OrbitControls.prototype, {

            center: {

                get: function () {

                    console.warn('THREE.OrbitControls: .center has been renamed to .target');
                    return this.target;

                }

            },

            // backward compatibility

            noZoom: {

                get: function () {

                    console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');
                    return !this.enableZoom;

                },

                set: function (value) {

                    console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');
                    this.enableZoom = !value;

                }

            },

            noRotate: {

                get: function () {

                    console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');
                    return !this.enableRotate;

                },

                set: function (value) {

                    console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');
                    this.enableRotate = !value;

                }

            },

            noPan: {

                get: function () {

                    console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');
                    return !this.enablePan;

                },

                set: function (value) {

                    console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');
                    this.enablePan = !value;

                }

            },

            noKeys: {

                get: function () {

                    console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');
                    return !this.enableKeys;

                },

                set: function (value) {

                    console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');
                    this.enableKeys = !value;

                }

            },

            staticMoving: {

                get: function () {

                    console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');
                    return !this.enableDamping;

                },

                set: function (value) {

                    console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');
                    this.enableDamping = !value;

                }

            },

            dynamicDampingFactor: {

                get: function () {

                    console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');
                    return this.dampingFactor;

                },

                set: function (value) {

                    console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');
                    this.dampingFactor = value;

                }

            }

        });
    }
}